CA2378118C - Construction machine and milling roller - Google Patents
Construction machine and milling roller Download PDFInfo
- Publication number
- CA2378118C CA2378118C CA002378118A CA2378118A CA2378118C CA 2378118 C CA2378118 C CA 2378118C CA 002378118 A CA002378118 A CA 002378118A CA 2378118 A CA2378118 A CA 2378118A CA 2378118 C CA2378118 C CA 2378118C
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- Prior art keywords
- milling
- roller
- base body
- tube
- roller base
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/12—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for taking-up, tearing-up, or full-depth breaking-up paving, e.g. sett extractor
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Road Repair (AREA)
- Shovels (AREA)
- Crushing And Grinding (AREA)
- Milling Processes (AREA)
- Adjustment And Processing Of Grains (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Component Parts Of Construction Machinery (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Soil Working Implements (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
In a construction machine comprising a machine frame (2) having a milling roller (18) arranged for rotation therein, the milling roller (18) comprising a roller base body (19) driven by a milling roller drive device (11 to 15) via a transmission unit (32), and a milling tube (25) to be coaxially mounted on the roller base body (19) and to be attached in a manner allowing exchange thereof, with the milling tube (25) carrying cutting tools on its outer surface (46), it is provided that the milling tube (25) comprises fastening elements (28), radially projecting from the inner surface (44), by which the milling tube (25) can be mounted in a rotationally fixed manner to the roller base body (19) or to a member connected to the roller base body (19).
Description
SUBSTITUTE SBEETS TO BE USED FOR NATIONAL PaiASE ENTRI' Da/Dt Construction machine and millinc roller The invention relates to a milling roller and more particularly, relates to a milling roller having a roller drive mounted on a chassis frame of a construction machine.
Different situations at construction sites and different milling processes make it often necessary to adapt the milling tool to the specific tasks. For instance, when a specific surface roughness is to be obtained, a milling roller with a special line interval of the milling tools or a different tool equipment will be required. In another application, only lanes of specific widths have to be built, thus requiring a milling roller of a specific working width.
Normally, in such situations, a special milling machine has to be used, or the machine must be equipped with a milling roller adapted to the task. Presently, however, the exchange of the rollers is very bothersome and necessitates spe-cial auxiliary toots for the mounting and dismounting of the milling roller.
The adapting of milling rollers to different requirements is known in the state of the art.
DE 40 37 448 A describes a road milling machine wherein the roller body is braced between a fixed bearing carrying the drive housing, and a movable bearing arranged opposite to,the fixed bearing. The movable bearing is pro-vided with a centering receiving cone, and the support of the movable bearing can be hydraulically displaced. Further, the movable bearing is braced to the fixed bearing via a tie bar.
The approach known from Di= 40 37 448 A requires o complex tensioning mechanism with a tie bar and ~ operating cylinder above the milling roller.
Different situations at construction sites and different milling processes make it often necessary to adapt the milling tool to the specific tasks. For instance, when a specific surface roughness is to be obtained, a milling roller with a special line interval of the milling tools or a different tool equipment will be required. In another application, only lanes of specific widths have to be built, thus requiring a milling roller of a specific working width.
Normally, in such situations, a special milling machine has to be used, or the machine must be equipped with a milling roller adapted to the task. Presently, however, the exchange of the rollers is very bothersome and necessitates spe-cial auxiliary toots for the mounting and dismounting of the milling roller.
The adapting of milling rollers to different requirements is known in the state of the art.
DE 40 37 448 A describes a road milling machine wherein the roller body is braced between a fixed bearing carrying the drive housing, and a movable bearing arranged opposite to,the fixed bearing. The movable bearing is pro-vided with a centering receiving cone, and the support of the movable bearing can be hydraulically displaced. Further, the movable bearing is braced to the fixed bearing via a tie bar.
The approach known from Di= 40 37 448 A requires o complex tensioning mechanism with a tie bar and ~ operating cylinder above the milling roller.
Described in US-4,704,045 is a milling aggregate which is variable in width by use of various roller segments. According to this approach, the roller segments are connected to each other by a plug connection. In a certain manner, this approach can be considered as a milling roller quick-exchange system but suf-fers from the following disadvantages:
In this approach, it is disadvantageous that the milling rollers are driven hy-drostatically by hydraulic motors arranged on both sides of the milling roller.
Further, the connection between the segments is a simple plug connection al-lowing merely for an insufficient centering of the milling motor.
DE 31 45 713 A describes a milling roller for a road milling machine which is supported and driven by a roller bearing and drive device held by a support frame, wherein the milling roller comprises a cylindrical base body. Arranged on one end of the one-sided milling roller are the drive unit of the roller bear-ing and drive device as well as an annular shoulder supporting the milling tube mounted from the other end. On the side opposite to the drive unit, a holding flange is arranged for fixing the milling tube. According to this concept, the milling roller is provided with a hydrostatic drive which due to its system-inherent disadvantages, e.g. low efficiency, is nowadays hardly used any more in road milling. A further disadvantage of this approach resides in that the milling tubes have to be axially fixed by means of annular shoulders so that the fastening elements are located in the region of the strongest contamina-tion.
US-4,720,207 describes milling tube segments mounted on a roller base body.
In this concept, a corner ring segment is first applied on one side. Then the milling tube segments are attached thereon by screw-fitting, with the thread connection arranged within the segments. Disadvantages reside in the consid-erable expenditure for the screw connections and in that, due to the constant diameter of the base body, the milling depth is restricted when a planetary gear is integrated into the base body.
A different approach wherein particularly the milling depth is not restricted, is described in US-5,505,598. According to this approach, the milling roller tube having the segments with the milling tools mounted thereon, has a stepped shape. The reason therefor is that the transmission required for a mechanical milling roller drive is integrated into the rotor. The planetary gear is arranged on the side opposite the belt drive disk and is driven by a drive shaft guided through the milling shaft.
This transmission arrangement is required to allow for a flush milling. In the region of the roller transmission, the diameter of the milling shaft is adapted corresponding to the constructional volume of the transmission. The rest of the region will then be available for the mounting of segments with the milling tools.
In this approach, it is disadvantageous that different milling processes, such as normal and fine milling, cannot be performed without exchanging the mill-ing rotor.
Present milling rollers and inventions for adapting the milling tools to different applications are focused merely on the adapting of the milling rotor to the re-spective situation at the construction site.
A problem in the above mentioned state of the art normally resides in that the fastening elements for fixing the milling element to the base body are pro-vided in the surface region of the cylindrical milling tool. Exactly this region, however, is subjected to massive contamination so that the exchange of the milling tube is rendered considerably difficult.
L
It is the object of the invention to provide a milling roller and a construction machine which allow for a fast exchange of milling rollers and a simplified handling of the demounted milling rollers and which minimize the time and work required for the exchange of a milling roller.
In the solution according to the invention, it is advantageously provided that the one-pieced milling tube comprises fastening elements, radially projecting from the inner surface, by which the milling tube can be mounted in a rot~-tionally fixed manner to the roller base body or to a member connected to the roller base bady. This solution offers the following advantages:
For exchange of the milling tool, only the milling tube has to be ey changed.
~ The fastening elements are arranged in the region of the least con-tamination.
~ The roller drive with the mechanical milling roller drive elements remain in adjustment relative to the complete power train on the machinE.
~ Suitability of the device for different milling roller concept.
~ No adjustment of the power train required.
Centering of the milling tube relative to the millino roller drive elements.
~ Easily detachable connection between the millinG tube and the millinc tube drive element.
~ Less expenditure for lifting equipment.
~ Avoidance of imbalances due to axis displacement or angular displace-ment.
The fastening elements are preferably arranged on at least one end side of the milling tube. In this manner, for instance, the milling tube can be shifted onto the roller base body and be guided and centered by guide elements on the axial end of the roller base body opposite the fastening elements.
Preferably, the milling tube is attached on an end side of the roller base body.
In this arrangement, the fastening elements are protected from contamina-tion.
In an advantageous embodiment, the fastening elements comprise flange members projecting radially inward from the milling tube. Fastening screws are guided to extend axially through these flange members and are screwed into the end side of the roller base body.
The milling tube can be arranged at a radial distance from the roller base body. The thus remaining cylindrical hollow space can be used e.g. to fill water thereinto for cooling the milling roller.
Preferably, the milling tube is radially supported at two axially spaced posi-tions on the roller base body. The support can be provided in the form of ra-dial guide elements fastened either radially outside on the roller base body or radially inside on the milling tube. The guide elements comprise support rings or guide elements segmented in the peripheral direction, which guide rings can be arranged e.g. at mutual angular distances of 120°. The guide elements can have a conical (e.g. trapezoidal) shape, a spherical shape or a cylindrical shape when viewed in axial cross section.
Alternately, the support can comprise radial guide elements integrally con-nected to the at least one fastening element so that the fastening element will simultaneously effect the rotationally fixed axial connection between the mill-ing tube and the roller base body, and the guidance and centering of the mill-ing tube on the roller base body on one axial end.
The radial guide elements can comprise radially acting tensioning elements.
Preferably, the milling tube is of a one-pieced configuration.
Between the milling tube and the roller base body, there can be arranged at least one support ring comprising e.g. at least two radially tensioned segment rings.
This support ring can be arranged for axial displacement relative to the roller base body and the milling tube.
The segment rings of the support ring can be wedge-shaped in cross section.
The at least one support ring can comprise a central ring having a trapezoidal shape in cross section and arranged to be axially tensioned against a radially outer ring and a radially inner ring which have an opposite trapezoidal shape in cross section, and pressing the outer ring against the milling tube and the inner ring against the roller base body.
The at least one support ring can be divided into one or a plurality of parts when viewed in the peripheral direction. This facilitates the mounting of a sup-port ring; for instance, the support ring can comprise two half-rings or seg-ments of 120°.
In one embodiment, it is provided that the transmission unit is arranged at the end of the roller base body facing toward the milling roller drive device. In this arrangement, the transmission unit is preferably integrated into the roller base body.
In another embodiment, it is provided that the transmission unit is arranged at the end of the roller base body facing away from the milling roller drive de-vice, the transmission unit being connected to the milling roller drive device by a shaft guided through the roller base body. Also on this case, the transmis-sion unit is integrated into the roller base body. Such a construction allows for the use of milling tubes with small milling widths.
The roller base body is supported in two side walls of a roller box, wherein the side wall facing away from the roller drive device can be displaced by a pivot-ing or axis-parallel movement. In the closed condition, the pivotable or axially displaceable side wall receives the movable bearing of the roller base body.
For this purpose, the movable bearing can comprise a guide member tapering in the outward direction, which is received and centered in a correspondingly tapering recess of the side wall.
Further advantageous embodiments of the invention are mentioned in the fur-ther claims.
Exemplary embodiments of the invention will be explained in greater detail hereunder with reference to the drawings.
Fig. 1 is a view of a road milling machine, Fig. 2 is a schematic view of the milling roller drive device, Fig. 3 is a view of a first embodiment of a milling roller supported in a roller box and having an exchangeable milling tube;
Fig. 4 is a view of a second embodiment of a milling roller supported in a roller box;
Fig. 5 is a view of a pivotable side wall of the roller box, Figs. 6 and 7 are views of an alternative embodiment of the radial support of the milling tube, Fig. 8 is a view of a third embodiment of a milling tube, and Fig. 9 is a sectional view taken along the line IX-IX in Fig. 8.
Fig. 1 illustrates a road milling machine 1 for which the invention described hereunder is primarily used. Road milling machines normally comprise a chas-sis 2 with an internal combustion engine 11 mounted therein. The chassis of the machine normally comprises lifting columns 3,4, being adjustable in height and having support wheels or running chains 5,6 mounted thereon.
The milling aggregate 7 with the milling roller 18 is arranged under the chassis 2 and is rigidly connected thereto. The material detached by the milling roller is conveyed onto a first conveyer belt 9 which passes the material on to a sec-and conveyer belt 10 which is adiustable in height and pivotable. ' Fig. 2 illustrates the concept pf the milling roller drive. An internal combustion enginell directly drives a pulley 13. Within this power train, there is normally arranged a pump distributor transmission 12 whereon the hydraulic pumps for the various hydrostatic drives are mounted. The engine power is transmitted via a composite V-belt 14 to a second pulley 15. This pulley is connected to shaft which transmits the power to a planetary gear arranged within milling roller 18 to reduce the rotational speed of the engine to the required roller speed. The milling roller is supported in the side walls 16 and 17.
Fig. 3 shows a first embodiment of a milling roller 18 supported in a roller box 31. The milling roller 18 comprises a roller base body 19 which by both of its axial ends is supported for rotation in the side walls 16,17 of the roller box 31, and a milling tube 25. For this purpose, the roller base body 19 receives, on an axial end thereof, the transmission unit 32 comprising a planetary gear and is connected therewith in a rotationally fixed manner. The fixed transmission transmission portion 22 of the planetary gear 32 is fastened to side wall 16 by means of a screw connection 20. An outer protective wall 21 can be provided, at the height of the screw connections 20, with openings 23 to allow access to the screw connections 20 from outside. On the axial end of the roller base body 19 opposite to the drive side, a movable bearing 24 is provided which by means of a guide member 40 is centrically supported in a recess 41 of the side wall 17. The guide member 40 and the recess 41 can have conical shapes adapted to each other so that the roller base body 19 with the movable bear-ing 24 is centrically supported in a simple manner.
For mounting the milling tube 25 on the roller base body 19, the milling tube 25 is shifted onto the roller base body 19. On the drive side of the roller base body 19, a radial guide element 26 is provided which on the one hand is at-tached to roller base body 19 and on the other hand serves as a screw-connection flange for planetary gear 32. The guide elements 26 can comprise an annular flange or ring segments which fill only a part of the peripheral re-gion. The guide elements 26 are of a slightly conical, spherical or cylindrical cross section and can be welded to the roller base body 19. Generally, the ra-dial support of the milling tube on the roller base body 19 can be provided by positive or frictional engagement. Alternatively, the guide elements 26 can comprise a splined shaft profile.
The guide elements 26 are arranoed for centering the exchangeable milling tube 25. Preferred use is made of a conical or spherical cross-sectional shape so as to avoid a cantina while mounting the milling tube 25 Provided on the end of the roller base body 19 facing toward the movable bearing 24 is a radial support of the milling tube 25 by means of a fastening element 28 of milling tube 25. This fastening element 28 comprises e.g. an annular flange projecting radially inward from milling tube 25 and attached to the inner surf ace 44 of milling tube 25. This annular flange, as shown in Fig. 3, can be L-shaped in cross section, with an axially projecting ring segment or ring 42 radially supporting the milling tube 25 on the roller base body 19 in fitting manner.
The radially inwardly projecting portion of the fastening element 28 is screwed by means of axial fastening screws to the front end 43 of the roller base body 19 so that the milling tube 25 is connected to roller base body 19 in a rota-tionally fixed manner. The roller base body 19 can abut, by its front side end 43 facing toward the movable bearing 24, on the fastening element 28 com-prising the annular flange, without a gap 27 being formed.
On the outer surface 46 of the milling tube 25, milling tools (not shown) are mounted.
To adapt the road construction machine to different reauirements at~ a con-struction site, only the milling tube 25 has to be exchanged. In this manner, milting tubes 25 of different v~rorking widths or with different fine intervals of the milting tools for obtaining a different surface roughness of the road paving, can be used and quickly exchanged for other milling tubes 25.
For mounting the milling tube 25, the side wall 17 arranged on the movable bearing 24 is demounted or is pivoted through a hinoe or a oear 30 as shown in Fig. 5. Tne hinge 30 or gear is fastened to the roller box 31. After pivotine the side wall 17, the fastening screws of the fastening element 28 can be loos-ened, and the milling tube 25 can be exchanged by means of simple~tools.
Fig. 4 shows a further embodiment for small working widths of the milling tube 25 wherein particularly the planetary gear 32 is arranged on the side of the roller base body 19 facing away from the drive. The planetary gear 32 is con-nected to the milling roller drive device 11 to 15 via a shaft 56 guided through the roller base body 19. The arrangement of the planetary gear 32 on the side facing away from the drive makes it possible that the milling tube 25 ends nearly flush with the machine outer edge (zero-side). When exchanging the milling tube 25, it is possible, after removal of the side wall 17, the shift the milling tube 25 over the planetary gear 32 until the fastening element 28 abuts the planetary gear 32.
On the end of the milling tube 25 facing away from the planetary gear 32, a radial support is provided for the milling tube in the form of a support ring arranged between the milling tube and the roller base body 19 and consisting of a plurality of segment rings 60,62,64. The support ring 33 is axially dis-placeable both relative to milling tube 25 and relative to roller base body 19.
The outer segment rings 62,64 are conically beveled on the side radially facing toward the central segment ring 60, and the inclination of their conical faces is adapted to the central segment ring 60 having a wedge-shaped cross section.
The central segment ring 60 is provided with fastening screws 35 cooperating with an annular or annularly segmented counterpressure plate 34 to thus clamp the outer segment rings 62,64 against the central segment ring 60. By the expansion of the outer segment rings 62,64, the milling tube 25 is tightyl clamped to the roller base body 19 and is at the same time centered.
The interrupted lines indicate the maximum sectional circular diameter and the minimum milling width.
Figs. 6 and 7 illustrate an alternative radial support of the milling tube 25 on the roller base body 19. In this embodiment, as shown in Fig. 6, the fastening element 28 is in flush axial abutment on the end side 43 of roller base body without a gap.
The free end of the roller base body 19 has a cylindrical guidance element 26 welded thereto, abutting in a closely fitting manner on the inner surface 44 of milling tube 25. Further, the inner surface 44 of milling tube 25 is on the free end of the tube protected by a protective sleeve 39 so that the material de-tached by the milling roller 25 cannot damage the inner surface 44 of milling tube 25. Preferably, the protective sleeve 39 is fastened to the planetary gear 32 by a flange.
Fig. 8 shows an alternative embodiment of the arrangement according to Fig.
In this approach, it is disadvantageous that the milling rollers are driven hy-drostatically by hydraulic motors arranged on both sides of the milling roller.
Further, the connection between the segments is a simple plug connection al-lowing merely for an insufficient centering of the milling motor.
DE 31 45 713 A describes a milling roller for a road milling machine which is supported and driven by a roller bearing and drive device held by a support frame, wherein the milling roller comprises a cylindrical base body. Arranged on one end of the one-sided milling roller are the drive unit of the roller bear-ing and drive device as well as an annular shoulder supporting the milling tube mounted from the other end. On the side opposite to the drive unit, a holding flange is arranged for fixing the milling tube. According to this concept, the milling roller is provided with a hydrostatic drive which due to its system-inherent disadvantages, e.g. low efficiency, is nowadays hardly used any more in road milling. A further disadvantage of this approach resides in that the milling tubes have to be axially fixed by means of annular shoulders so that the fastening elements are located in the region of the strongest contamina-tion.
US-4,720,207 describes milling tube segments mounted on a roller base body.
In this concept, a corner ring segment is first applied on one side. Then the milling tube segments are attached thereon by screw-fitting, with the thread connection arranged within the segments. Disadvantages reside in the consid-erable expenditure for the screw connections and in that, due to the constant diameter of the base body, the milling depth is restricted when a planetary gear is integrated into the base body.
A different approach wherein particularly the milling depth is not restricted, is described in US-5,505,598. According to this approach, the milling roller tube having the segments with the milling tools mounted thereon, has a stepped shape. The reason therefor is that the transmission required for a mechanical milling roller drive is integrated into the rotor. The planetary gear is arranged on the side opposite the belt drive disk and is driven by a drive shaft guided through the milling shaft.
This transmission arrangement is required to allow for a flush milling. In the region of the roller transmission, the diameter of the milling shaft is adapted corresponding to the constructional volume of the transmission. The rest of the region will then be available for the mounting of segments with the milling tools.
In this approach, it is disadvantageous that different milling processes, such as normal and fine milling, cannot be performed without exchanging the mill-ing rotor.
Present milling rollers and inventions for adapting the milling tools to different applications are focused merely on the adapting of the milling rotor to the re-spective situation at the construction site.
A problem in the above mentioned state of the art normally resides in that the fastening elements for fixing the milling element to the base body are pro-vided in the surface region of the cylindrical milling tool. Exactly this region, however, is subjected to massive contamination so that the exchange of the milling tube is rendered considerably difficult.
L
It is the object of the invention to provide a milling roller and a construction machine which allow for a fast exchange of milling rollers and a simplified handling of the demounted milling rollers and which minimize the time and work required for the exchange of a milling roller.
In the solution according to the invention, it is advantageously provided that the one-pieced milling tube comprises fastening elements, radially projecting from the inner surface, by which the milling tube can be mounted in a rot~-tionally fixed manner to the roller base body or to a member connected to the roller base bady. This solution offers the following advantages:
For exchange of the milling tool, only the milling tube has to be ey changed.
~ The fastening elements are arranged in the region of the least con-tamination.
~ The roller drive with the mechanical milling roller drive elements remain in adjustment relative to the complete power train on the machinE.
~ Suitability of the device for different milling roller concept.
~ No adjustment of the power train required.
Centering of the milling tube relative to the millino roller drive elements.
~ Easily detachable connection between the millinG tube and the millinc tube drive element.
~ Less expenditure for lifting equipment.
~ Avoidance of imbalances due to axis displacement or angular displace-ment.
The fastening elements are preferably arranged on at least one end side of the milling tube. In this manner, for instance, the milling tube can be shifted onto the roller base body and be guided and centered by guide elements on the axial end of the roller base body opposite the fastening elements.
Preferably, the milling tube is attached on an end side of the roller base body.
In this arrangement, the fastening elements are protected from contamina-tion.
In an advantageous embodiment, the fastening elements comprise flange members projecting radially inward from the milling tube. Fastening screws are guided to extend axially through these flange members and are screwed into the end side of the roller base body.
The milling tube can be arranged at a radial distance from the roller base body. The thus remaining cylindrical hollow space can be used e.g. to fill water thereinto for cooling the milling roller.
Preferably, the milling tube is radially supported at two axially spaced posi-tions on the roller base body. The support can be provided in the form of ra-dial guide elements fastened either radially outside on the roller base body or radially inside on the milling tube. The guide elements comprise support rings or guide elements segmented in the peripheral direction, which guide rings can be arranged e.g. at mutual angular distances of 120°. The guide elements can have a conical (e.g. trapezoidal) shape, a spherical shape or a cylindrical shape when viewed in axial cross section.
Alternately, the support can comprise radial guide elements integrally con-nected to the at least one fastening element so that the fastening element will simultaneously effect the rotationally fixed axial connection between the mill-ing tube and the roller base body, and the guidance and centering of the mill-ing tube on the roller base body on one axial end.
The radial guide elements can comprise radially acting tensioning elements.
Preferably, the milling tube is of a one-pieced configuration.
Between the milling tube and the roller base body, there can be arranged at least one support ring comprising e.g. at least two radially tensioned segment rings.
This support ring can be arranged for axial displacement relative to the roller base body and the milling tube.
The segment rings of the support ring can be wedge-shaped in cross section.
The at least one support ring can comprise a central ring having a trapezoidal shape in cross section and arranged to be axially tensioned against a radially outer ring and a radially inner ring which have an opposite trapezoidal shape in cross section, and pressing the outer ring against the milling tube and the inner ring against the roller base body.
The at least one support ring can be divided into one or a plurality of parts when viewed in the peripheral direction. This facilitates the mounting of a sup-port ring; for instance, the support ring can comprise two half-rings or seg-ments of 120°.
In one embodiment, it is provided that the transmission unit is arranged at the end of the roller base body facing toward the milling roller drive device. In this arrangement, the transmission unit is preferably integrated into the roller base body.
In another embodiment, it is provided that the transmission unit is arranged at the end of the roller base body facing away from the milling roller drive de-vice, the transmission unit being connected to the milling roller drive device by a shaft guided through the roller base body. Also on this case, the transmis-sion unit is integrated into the roller base body. Such a construction allows for the use of milling tubes with small milling widths.
The roller base body is supported in two side walls of a roller box, wherein the side wall facing away from the roller drive device can be displaced by a pivot-ing or axis-parallel movement. In the closed condition, the pivotable or axially displaceable side wall receives the movable bearing of the roller base body.
For this purpose, the movable bearing can comprise a guide member tapering in the outward direction, which is received and centered in a correspondingly tapering recess of the side wall.
Further advantageous embodiments of the invention are mentioned in the fur-ther claims.
Exemplary embodiments of the invention will be explained in greater detail hereunder with reference to the drawings.
Fig. 1 is a view of a road milling machine, Fig. 2 is a schematic view of the milling roller drive device, Fig. 3 is a view of a first embodiment of a milling roller supported in a roller box and having an exchangeable milling tube;
Fig. 4 is a view of a second embodiment of a milling roller supported in a roller box;
Fig. 5 is a view of a pivotable side wall of the roller box, Figs. 6 and 7 are views of an alternative embodiment of the radial support of the milling tube, Fig. 8 is a view of a third embodiment of a milling tube, and Fig. 9 is a sectional view taken along the line IX-IX in Fig. 8.
Fig. 1 illustrates a road milling machine 1 for which the invention described hereunder is primarily used. Road milling machines normally comprise a chas-sis 2 with an internal combustion engine 11 mounted therein. The chassis of the machine normally comprises lifting columns 3,4, being adjustable in height and having support wheels or running chains 5,6 mounted thereon.
The milling aggregate 7 with the milling roller 18 is arranged under the chassis 2 and is rigidly connected thereto. The material detached by the milling roller is conveyed onto a first conveyer belt 9 which passes the material on to a sec-and conveyer belt 10 which is adiustable in height and pivotable. ' Fig. 2 illustrates the concept pf the milling roller drive. An internal combustion enginell directly drives a pulley 13. Within this power train, there is normally arranged a pump distributor transmission 12 whereon the hydraulic pumps for the various hydrostatic drives are mounted. The engine power is transmitted via a composite V-belt 14 to a second pulley 15. This pulley is connected to shaft which transmits the power to a planetary gear arranged within milling roller 18 to reduce the rotational speed of the engine to the required roller speed. The milling roller is supported in the side walls 16 and 17.
Fig. 3 shows a first embodiment of a milling roller 18 supported in a roller box 31. The milling roller 18 comprises a roller base body 19 which by both of its axial ends is supported for rotation in the side walls 16,17 of the roller box 31, and a milling tube 25. For this purpose, the roller base body 19 receives, on an axial end thereof, the transmission unit 32 comprising a planetary gear and is connected therewith in a rotationally fixed manner. The fixed transmission transmission portion 22 of the planetary gear 32 is fastened to side wall 16 by means of a screw connection 20. An outer protective wall 21 can be provided, at the height of the screw connections 20, with openings 23 to allow access to the screw connections 20 from outside. On the axial end of the roller base body 19 opposite to the drive side, a movable bearing 24 is provided which by means of a guide member 40 is centrically supported in a recess 41 of the side wall 17. The guide member 40 and the recess 41 can have conical shapes adapted to each other so that the roller base body 19 with the movable bear-ing 24 is centrically supported in a simple manner.
For mounting the milling tube 25 on the roller base body 19, the milling tube 25 is shifted onto the roller base body 19. On the drive side of the roller base body 19, a radial guide element 26 is provided which on the one hand is at-tached to roller base body 19 and on the other hand serves as a screw-connection flange for planetary gear 32. The guide elements 26 can comprise an annular flange or ring segments which fill only a part of the peripheral re-gion. The guide elements 26 are of a slightly conical, spherical or cylindrical cross section and can be welded to the roller base body 19. Generally, the ra-dial support of the milling tube on the roller base body 19 can be provided by positive or frictional engagement. Alternatively, the guide elements 26 can comprise a splined shaft profile.
The guide elements 26 are arranoed for centering the exchangeable milling tube 25. Preferred use is made of a conical or spherical cross-sectional shape so as to avoid a cantina while mounting the milling tube 25 Provided on the end of the roller base body 19 facing toward the movable bearing 24 is a radial support of the milling tube 25 by means of a fastening element 28 of milling tube 25. This fastening element 28 comprises e.g. an annular flange projecting radially inward from milling tube 25 and attached to the inner surf ace 44 of milling tube 25. This annular flange, as shown in Fig. 3, can be L-shaped in cross section, with an axially projecting ring segment or ring 42 radially supporting the milling tube 25 on the roller base body 19 in fitting manner.
The radially inwardly projecting portion of the fastening element 28 is screwed by means of axial fastening screws to the front end 43 of the roller base body 19 so that the milling tube 25 is connected to roller base body 19 in a rota-tionally fixed manner. The roller base body 19 can abut, by its front side end 43 facing toward the movable bearing 24, on the fastening element 28 com-prising the annular flange, without a gap 27 being formed.
On the outer surface 46 of the milling tube 25, milling tools (not shown) are mounted.
To adapt the road construction machine to different reauirements at~ a con-struction site, only the milling tube 25 has to be exchanged. In this manner, milting tubes 25 of different v~rorking widths or with different fine intervals of the milting tools for obtaining a different surface roughness of the road paving, can be used and quickly exchanged for other milling tubes 25.
For mounting the milling tube 25, the side wall 17 arranged on the movable bearing 24 is demounted or is pivoted through a hinoe or a oear 30 as shown in Fig. 5. Tne hinge 30 or gear is fastened to the roller box 31. After pivotine the side wall 17, the fastening screws of the fastening element 28 can be loos-ened, and the milling tube 25 can be exchanged by means of simple~tools.
Fig. 4 shows a further embodiment for small working widths of the milling tube 25 wherein particularly the planetary gear 32 is arranged on the side of the roller base body 19 facing away from the drive. The planetary gear 32 is con-nected to the milling roller drive device 11 to 15 via a shaft 56 guided through the roller base body 19. The arrangement of the planetary gear 32 on the side facing away from the drive makes it possible that the milling tube 25 ends nearly flush with the machine outer edge (zero-side). When exchanging the milling tube 25, it is possible, after removal of the side wall 17, the shift the milling tube 25 over the planetary gear 32 until the fastening element 28 abuts the planetary gear 32.
On the end of the milling tube 25 facing away from the planetary gear 32, a radial support is provided for the milling tube in the form of a support ring arranged between the milling tube and the roller base body 19 and consisting of a plurality of segment rings 60,62,64. The support ring 33 is axially dis-placeable both relative to milling tube 25 and relative to roller base body 19.
The outer segment rings 62,64 are conically beveled on the side radially facing toward the central segment ring 60, and the inclination of their conical faces is adapted to the central segment ring 60 having a wedge-shaped cross section.
The central segment ring 60 is provided with fastening screws 35 cooperating with an annular or annularly segmented counterpressure plate 34 to thus clamp the outer segment rings 62,64 against the central segment ring 60. By the expansion of the outer segment rings 62,64, the milling tube 25 is tightyl clamped to the roller base body 19 and is at the same time centered.
The interrupted lines indicate the maximum sectional circular diameter and the minimum milling width.
Figs. 6 and 7 illustrate an alternative radial support of the milling tube 25 on the roller base body 19. In this embodiment, as shown in Fig. 6, the fastening element 28 is in flush axial abutment on the end side 43 of roller base body without a gap.
The free end of the roller base body 19 has a cylindrical guidance element 26 welded thereto, abutting in a closely fitting manner on the inner surface 44 of milling tube 25. Further, the inner surface 44 of milling tube 25 is on the free end of the tube protected by a protective sleeve 39 so that the material de-tached by the milling roller 25 cannot damage the inner surface 44 of milling tube 25. Preferably, the protective sleeve 39 is fastened to the planetary gear 32 by a flange.
Fig. 8 shows an alternative embodiment of the arrangement according to Fig.
4 wherein the fastening element 28 rests on a flange portion of the planetary gear 32 with close fit. A support ring 33 is screwed to the roller base body 19, and the roller base body 19 can be mounted on different axial positions de-pending on the length of the milling tube 25. For this purpose, the roller base body 19 comprises a protective tube 38 exchangeably mounted on the roller base body 19 in a rotationally fixed manner. The protective tube 38 serves for protecting the roller base body 19 from damage from the milled material. In the protective tune 38, recesses 37 are arranged in a uniform distribution at predetermined axial distances on the circumference, in which recesses the support ring 33 can be mounted to the roller base body 19. The axial distances of the recesses 37 are adapted to the lengths of different milling tubes 25.
If no support ring 33 has been mounted, the recesses 37 are closed by a lid 36 so that also in the region of the recesses 37 no damage can be caused to the roller base body 19. Preferably, it is provided that the support ring 33 is com-bined with a protective sleeve 39 arranged to protect the inner surface 44 on the free end of milling tube 25.
Fig. 9 is a sectional view taken along the line IX-IX in Fig. 8. The support ring 33 consists of two halves which can be screwed tight relative to each other on the roller base body 19 by means of screws. In this arrangement, projections 35 of support ring 33 engage the recesses 37 of the protective tube 38. The support ring halves can be screwed to the roller base body 19 on the projec-tions 35. For axial displacement of the support ring 33, the screws 47 are de-tached after removal of milling tube 25 so that the two halves of the support ring 33 can be pulled apart at least so far that the support ring 33 can be shifted over the protective tube 38. For spreading the two halves of the sup-port ring 33 apart, use is made of pressing screws 48 so that the support ring 33 can be mounted without large force and time requirement on a different axial position on the roller base body 19 without detaching the screws 47 com-pletely. The recesses 37 are axially arranged in the protective tube 38 in such a manner that the protective shell 39, coupled to support ring 33, for the inner surface 44 of the milling tube ends flush with the free end of the respective inserted milling tube 25.
If no support ring 33 has been mounted, the recesses 37 are closed by a lid 36 so that also in the region of the recesses 37 no damage can be caused to the roller base body 19. Preferably, it is provided that the support ring 33 is com-bined with a protective sleeve 39 arranged to protect the inner surface 44 on the free end of milling tube 25.
Fig. 9 is a sectional view taken along the line IX-IX in Fig. 8. The support ring 33 consists of two halves which can be screwed tight relative to each other on the roller base body 19 by means of screws. In this arrangement, projections 35 of support ring 33 engage the recesses 37 of the protective tube 38. The support ring halves can be screwed to the roller base body 19 on the projec-tions 35. For axial displacement of the support ring 33, the screws 47 are de-tached after removal of milling tube 25 so that the two halves of the support ring 33 can be pulled apart at least so far that the support ring 33 can be shifted over the protective tube 38. For spreading the two halves of the sup-port ring 33 apart, use is made of pressing screws 48 so that the support ring 33 can be mounted without large force and time requirement on a different axial position on the roller base body 19 without detaching the screws 47 com-pletely. The recesses 37 are axially arranged in the protective tube 38 in such a manner that the protective shell 39, coupled to support ring 33, for the inner surface 44 of the milling tube ends flush with the free end of the respective inserted milling tube 25.
Claims (28)
1. A milling roller comprising a roller base body (19) driven by a milling roller drive device (11 to 15) via a transmission unit (32), and a one-pieced milling tube (25) to be coaxially mounted from one side on the roller base body (19) and to be attached in a manner allowing exchange thereof, the milling tube (25) carrying cutting tools on its outer surface (46), characterized in that the milling tube (25) comprises fastening ele-ments (28), radially projecting from the inner surface (44) of the milling tube (25), by which the milling tube (25) can be mounted in a rotation-ally fixed manner to the roller base body (19) or to a member connected to the roller base body (19).
2. The milling roller according to claim 1, characterized in that the fastening elements (28) are arranged on at least one end side of the milling tube (25).
3. The milling roller according to any one of claims 1 or 2, characterized in that the milling tube (25) is fastened to an end side of the roller base body (19) and is radially supported on the other end side.
4. The milling roller according to any one of claims 1 to 3, characterized in that the fastening elements (28) comprise flange members projecting ra-dially inward from the milling tube (25).
5. The milling roller according to any one of claims 1 to 4, characterized in that the milling tube (25) is arranged at a radial distance from the roller base body.
6. The milling roller according to any one of claims 1 to 5, characterized in that the milling tube (25) axially projects relative to the roller base body (19).
7. The milling roller according to any one of claims 1 to 6, characterized in that the member connected to the roller base body (19) comprises the transmission unit (32) integrated into the roller base body (19).
8. The milling roller according to any one of claims 1 to 7, characterized in that the milling tube (25) is radially supported at two axially spaced posi-tions on the roller base body (19).
9. The milling roller according to claim 8, characterized in that the support comprises radial guide elements (26;33;42) fastened either radially out-side on the roller base body (19) or radially inside on the milling tube (25) or are arranged between the roller base body (19) and the milling tube (25).
10. The milling roller according to claim 8, characterized in that the support comprises radial guide elements (42), wherein the guide elements (42) are integrally connected to the at least one fastening element (28).
11. The milling roller according to claim 9, characterized in that the support comprises radial guide elements (26), wherein the guide elements (26) are arranged on a free end side of the roller base body (19).
12. The milling roller according to any one of claims 9 or 11, characterized in that the radial guide elements can comprise radially acting tensioning elements (60,62,64).
13. The milling roller according to any one of claims 1 to 12, characterized in that, between the milling tube (25) and the roller base body (19), at least one support ring (33) is arranged as a radial guiding element.
14. The milling roller according to claim 13, characterized in that the at least one support ring (33) comprises at least two radially tensioned segment rings (60,62,64).
15. The milling roller according to claim 13 or 14, characterized in that the at least one support ring (33) is arranged for axial displacement relative to the roller base body (19) and the milling tube (25).
16. The milling roller according to claim 14, characterized in that the segment rings (62,62,64) are wedge-shaped in cross section.
17. The milling roller according to any one of claims 13 to 16, characterized in that the at least one support ring (33) comprises a central ring (60) having a trapezoidal shape in cross section and arranged to be axially tensioned against a radially outer ring (62) and a radially inner ring (64) which have an opposite trapezoidal shape in cross section, and pressing the outer ring (62) against the milling tube (25) and the inner ring (64) against the roller base body (19).
18. The milling roller according to any one of claims 13 to 17, characterized in that the at least one support ring (33) is divided into two or more parts in the circumferential direction.
19. The milling roller according to any one of claims 1 to 18, characterized in that the transmission unit (32) is arranged at the end of the roller base body (19) facing toward the milling roller drive device (11 to 15).
20. The milling roller according to any one of claims 1 to 18, characterized in that the transmission unit (32) is arranged at the end of the roller base body (19) facing away from the milling roller drive device (11 to 15), the transmission unit (32) being connected to the milling roller drive device (11 to 15) by a shaft (56) guided through the roller base body (19).
21. The milling roller according to any one of claims 1 to 20, characterized in that the roller base body (19) is supported in two side walls (16,17) of a roller box (31), that the side wall (17) facing away from the milling roller drive device (11 to 15) is a pivotal wall which can be displaced by a pivoting or axis-parallel movement, and that the pivotable side wall (17) in the closed condition receives the movable bearing (24) of the roller base body (19).
22. The milling roller according to claim 21, characterized in that the movable bearing (24) comprises an outwardly tapering guide member (40) and that the side wall (17) comprises a correspondingly tapering recess (41) receiving the guide member (40).
23. The milling roller according to any one of claims 1 to 22, characterized in that the roller base body (19) is supported in two side walls (16,17) of a roller box (31), that a machine cover (21) arranged on the milling roller drive device (11 to 15) is provided with openings (23) allowing access to fastening elements (20) between the side wall (16) facing toward the milling roller drive device (11 to 15) and the transmission unit (32) without a demounting of machine parts.
24. The milling roller according to any one of claims 1 to 23, characterized in that the milling tube (25) has a free end which is provided with a protective sleeve (39) for the inner surface (44).
25. The milling roller according to claim 13, characterized in that the protective sleeve (39) projects from the support ring (33).
26. The milling roller according to any one of claims 1 to 25, characterized in that the roller base body (19) is surrounded by a protective tube (38).
27. The milling roller according to claim 13, characterized in that the protective tube (38) comprises recesses (37) arranged in a uniform dis-tribution at predetermined axial distances on the circumference, for re-ceiving the support ring (33).
28. A construction machine, preferably comprising a machine frame (2) hav-ing a milling roller (18) according to any one of claims 1 to 27 arranged or supported therein.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19932396A DE19932396A1 (en) | 1999-07-14 | 1999-07-14 | Construction machine and milling drum |
| DE19932396.8 | 1999-07-14 | ||
| PCT/EP2000/006715 WO2001004422A1 (en) | 1999-07-14 | 2000-07-14 | Construction machine and milling roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2378118A1 CA2378118A1 (en) | 2001-01-18 |
| CA2378118C true CA2378118C (en) | 2006-09-05 |
Family
ID=7914411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002378118A Expired - Lifetime CA2378118C (en) | 1999-07-14 | 2000-07-14 | Construction machine and milling roller |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US6877818B1 (en) |
| EP (1) | EP1194651B2 (en) |
| JP (1) | JP4679015B2 (en) |
| KR (1) | KR100740559B1 (en) |
| CN (1) | CN1143919C (en) |
| AT (1) | ATE222976T1 (en) |
| AU (1) | AU770129B2 (en) |
| BR (1) | BR0012437B1 (en) |
| CA (1) | CA2378118C (en) |
| DE (3) | DE19932396A1 (en) |
| ES (1) | ES2181660T5 (en) |
| HK (1) | HK1047778B (en) |
| MX (1) | MXPA02000352A (en) |
| NO (1) | NO316777B1 (en) |
| PL (1) | PL206825B1 (en) |
| RU (1) | RU2241099C2 (en) |
| TR (1) | TR200200047T2 (en) |
| WO (1) | WO2001004422A1 (en) |
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| DE102005003739B3 (en) * | 2005-01-26 | 2006-11-16 | Wirtgen Gmbh | Construction machine, as well as swivel device |
| DE102005017754A1 (en) * | 2005-04-15 | 2006-10-19 | Wirtgen Gmbh | Construction machine, in particular road milling machine, recycler or stabilizer, and drive train for such construction machines |
| DE102006015506B3 (en) | 2006-03-31 | 2007-11-08 | Wirtgen Gmbh | Milling roller for a construction machine, construction machine and gear unit for a milling drum |
| DE102006062129B4 (en) | 2006-12-22 | 2010-08-05 | Wirtgen Gmbh | Road construction machine and method for measuring the cutting depth |
| DE102007007996B4 (en) | 2007-02-17 | 2008-10-16 | Takraf Gmbh | Drive for the grave drum of an open pit mining machine |
| US8068962B2 (en) | 2007-04-05 | 2011-11-29 | Power Curbers, Inc. | 3D control system for construction machines |
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| US7883153B2 (en) | 2007-09-10 | 2011-02-08 | Kennametal Inc. | Road milling drum having an adjustable width |
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| WO2010048967A1 (en) * | 2008-10-27 | 2010-05-06 | Marini S.P.A. | Road milling machine with milling drum with different cutting widths |
| DE102009059064B4 (en) | 2009-12-18 | 2012-04-26 | Wirtgen Gmbh | Self-propelled road milling machine |
| US8256847B2 (en) * | 2010-11-30 | 2012-09-04 | Hall David R | Rotational milling chamber |
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| EP3415690B1 (en) * | 2015-10-27 | 2020-03-11 | Wirtgen GmbH | Milling machine and method for operating a milling machine |
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| EP3406798B1 (en) * | 2017-05-23 | 2019-11-20 | Wirtgen GmbH | Replaceable milling roller |
| US10787775B2 (en) * | 2017-07-21 | 2020-09-29 | Roadtec, Inc. | Auxiliary drum drive assembly for milling machine |
| AU2018304236B2 (en) * | 2017-07-21 | 2021-01-14 | Roadtec, Inc. | Drive belt disengagement for cutter drum of milling machine and auxiliary drum drive assembly |
| CN110158690B (en) * | 2019-05-16 | 2024-03-01 | 江苏徐工工程机械研究院有限公司 | Milling wheel with mixed tooth plate and double-wheel slot milling machine |
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-
1999
- 1999-07-14 DE DE19932396A patent/DE19932396A1/en not_active Withdrawn
-
2000
- 2000-07-14 AT AT00949338T patent/ATE222976T1/en active
- 2000-07-14 TR TR2002/00047T patent/TR200200047T2/en unknown
- 2000-07-14 AU AU62733/00A patent/AU770129B2/en not_active Ceased
- 2000-07-14 BR BRPI0012437-0A patent/BR0012437B1/en not_active IP Right Cessation
- 2000-07-14 JP JP2001509812A patent/JP4679015B2/en not_active Expired - Fee Related
- 2000-07-14 WO PCT/EP2000/006715 patent/WO2001004422A1/en active IP Right Grant
- 2000-07-14 PL PL352152A patent/PL206825B1/en unknown
- 2000-07-14 KR KR1020027000381A patent/KR100740559B1/en active IP Right Grant
- 2000-07-14 DE DE50000427T patent/DE50000427D1/en not_active Expired - Lifetime
- 2000-07-14 ES ES00949338T patent/ES2181660T5/en not_active Expired - Lifetime
- 2000-07-14 MX MXPA02000352A patent/MXPA02000352A/en active IP Right Grant
- 2000-07-14 CN CNB008103097A patent/CN1143919C/en not_active Expired - Fee Related
- 2000-07-14 US US10/030,626 patent/US6877818B1/en not_active Expired - Lifetime
- 2000-07-14 EP EP00949338A patent/EP1194651B2/en not_active Expired - Lifetime
- 2000-07-14 DE DE20023999U patent/DE20023999U1/en not_active Expired - Lifetime
- 2000-07-14 RU RU2002103596/03A patent/RU2241099C2/en active
- 2000-07-14 CA CA002378118A patent/CA2378118C/en not_active Expired - Lifetime
-
2002
- 2002-01-07 NO NO20020048A patent/NO316777B1/en not_active IP Right Cessation
- 2002-12-23 HK HK02109281.7A patent/HK1047778B/en not_active IP Right Cessation
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| MXPA02000352A (en) | 2002-07-02 |
| RU2241099C2 (en) | 2004-11-27 |
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| EP1194651B1 (en) | 2002-08-28 |
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| US6877818B1 (en) | 2005-04-12 |
| WO2001004422A1 (en) | 2001-01-18 |
| CA2378118A1 (en) | 2001-01-18 |
| DE50000427D1 (en) | 2002-10-02 |
| ATE222976T1 (en) | 2002-09-15 |
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| HK1047778A1 (en) | 2003-03-07 |
| NO316777B1 (en) | 2004-05-03 |
| BR0012437A (en) | 2002-04-02 |
| BR0012437B1 (en) | 2009-05-05 |
| EP1194651A1 (en) | 2002-04-10 |
| CN1360653A (en) | 2002-07-24 |
| CN1143919C (en) | 2004-03-31 |
| JP4679015B2 (en) | 2011-04-27 |
| EP1194651B2 (en) | 2011-09-14 |
| HK1047778B (en) | 2004-08-13 |
| ES2181660T3 (en) | 2003-03-01 |
| NO20020048L (en) | 2002-03-12 |
| AU6273300A (en) | 2001-01-30 |
| ES2181660T5 (en) | 2012-02-03 |
| DE20023999U1 (en) | 2008-11-20 |
| PL352152A1 (en) | 2003-07-28 |
| TR200200047T2 (en) | 2002-05-21 |
| AU770129B2 (en) | 2004-02-12 |
| PL206825B1 (en) | 2010-09-30 |
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